11 Read and analysis of measurement data
11 Read and analysis of measurement data
The S418 embeds the data logger to record the measured data. You can
use the S4A, the free data analysis software to read and analyze the
data.
11.1 Data logger
Before you use the data logger, learn about how it works:
•
You can use the Android App S4C-FS to enable or disable the data
logger function and set a sampling rate as needed.
•
By default the data logger is disabled. Once you enable the data
logger, the S418 starts logging data. Once you disable the data
logger, the S418 stops logging.
•
The S418 saves all sampled data records into one file. Each record
includes a time stamp and all measurement data sampled at this
time point, such as flow, consumption, and pressure.
•
The S418 log file supports up to 5.6 million records due to its
memory size, which is equivalent to 64-day data at the one-
second sampling rate.
•
When the S418 runs out of memory, the new record will replace
the oldest one.
•
To read out the logs recorded in the S418 memory, install S4A
(1.1.2 or later versions), which is a specialized log analysis
software from SUTO, on a Windows-based computer. Also, connect
the PC with the S418 through the USB port.
•
Data records are saved in one file in the S418, S4A reads them
out into one file as well unless the following situations occur:
•
When the sampling rate is changed, S4A reads out the data
records into a different file.
•
When the S418 stops logging (for example, poweroff) and
resumes in less than 24 hours, S4A still reads out the data
records into one file; However, if the time gap is larger than
24 hours, S4A reads out the new data records to a different
file.
•
S4A enables you to have a graphic view on measurement data
recorded in a log file.
20
